what are your goals by investing? yes I think everyone wants to benefit from investment and trade. given the market situation is not yet fully stable, I'm sure you can still benefit from them.
I mean investing does not have to wait long, you can sell it at any time, when you see your coins above the initial capital price.
if you don't do that, you will starve!
It depends upon the people and the situation on how long the investment can be. Of course it also depends on the market situation. On investment, you do really have to be patient on waiting because if you don't, you will just end up on giving up your investment even you do not still get a feedback or profit from the investment you have made. You have the point on saying that investment must not take too long because you would just end up starving. In that case, it will only happen if you are just dependent or just relying on cryptocurrency investment or trading. You must still seek for another source of income aside from crypto because in this crypto world we are currently into, changes in terms of price is inevitable which can be favorable for you or not.